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Volume 11, Number 8—August 2005

Research

Estimating Foodborne Gastroenteritis, Australia

Gillian Hall*Comments to Author , Martyn D. Kirk†, Niels Becker*, Joy E. Gregory‡, Leanne Unicomb§, Geoffrey Millard¶, Russell Stafford#, Karin Lalor‡, and the OzFoodNet Working Group
Author affiliations: *Australian National University, Canberra, Australian Capital Territory (ACT), Australia; †OzFoodNet, Canberra, ACT, Australia; ‡Department of Human Services, Melbourne, Victoria, Australia; §Hunter Population Health Unit, Wallsend, New South Wales, Australia; ¶ACT Analytical Laboratory, Weston Creek, ACT, Australia; #Queensland Health, Archerfield, Queensland, Australia

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Table 1

GE due to known pathogens in Australia in a typical year circa 2000*

Pathogen Median no. GE cases (95% CrI) Median proportion foodborne (95% CrI) Median no. foodborne (95% CrI)
Bacteria
Aeromonas spp. 39,400 (31,700–47,200) 0.25 (0.12–0.38) 9,800 (4,100–15,400)
Bacillus cereus 6,900 (0–16,000) 1 (1.00–1.00) 6,900 (0–15,800)
Campylobacter spp. 277,000 (89,800–463,000) 0.75 (0.67–0.83) 208,000 (67,000–350,000)
Clostridium perfringens 43,000 (440–86,000) 1 (1.00–1.00) 43,000 (400–86,000)
STEC 3,000 (0–6,500) 0.65 (0.48–0.82) 1,900 (0–4,200)
non-STEC E. coli 1,152,000 (797,000–1,507,000) 0.5 (0.32–0.68) 563,000 (295,000–831,000)
Salmonella spp. 92,000 (26,000–158,000) 0.87 (0.81–0.93) 81,000 (23,000–138,000)
Shigella spp. 3,200 (0–6,900) 0.1 (0.04–0.16) 300 (0–700)
Staphylococcus aureus 14,100 (0–29,800) 1 (1.00–1.00) 14,200 (0–29,800)
Vibrio parahaemolyticus 1,080 (0–2,600) 0.71 (0.54–0.88) 740 (0–1,850)
Yersinia spp. 2,200 (0–4,500) 0.75 0.63–0.87) 1,620 (0–3,400)
Total bacteria 1,639,000 (1,175,000–2,103,000) 0.58 (0.44–0.72) 950,000 (590,000–1,310,000)
Viruses
Norovirus 1,832,000 (1,361,000–2,302,000) 0.25 (0.12–0.38) 446,000 (193,000–700,000)
Rotavirus 241,000 (98,000–384,000) 0.02 (0.01–0.03) 4,700 (700–8,600)
Astrovirus/adenovirus 190,000 (63,000–316,000) 0.1 (0.02–0.18) 17,500 (0–36,800)
Total viruses 2,280,000 (1,740,000–2,820,000) 0.21 (0.11–0.31) 470,000 (210,000–730,000)
Parasites
Cryptosporidium parvum 271,000 (255,000–287,000) 0.1 (0.02–0.18) 25,000 (0–54,000)
Giardia lamblia 430,000 (232,000–628,000) 0.05 (0.01–0.09) 20,400 (0–41,100)
Total parasites 704,000 (442,000–966,000) 0.14 (0.04–0.24) 66,000 (18,000–114,000)
Total
4,640,000 (3,750,000–5,510,000)
0.32 (0.24–0.40)
1,480,000 (1,030,000–1,920,000)
*GE, gastroenteritis; CrI, credibility interval; STEC, Shiga toxin–producing Escherichia coli.

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